ES514421A0 - A PROCEDURE FOR THE PRODUCTION OF AN ABSORBENT FOAM POLYMERIC PRODUCT. - Google Patents

A PROCEDURE FOR THE PRODUCTION OF AN ABSORBENT FOAM POLYMERIC PRODUCT.

Info

Publication number
ES514421A0
ES514421A0 ES514421A ES514421A ES514421A0 ES 514421 A0 ES514421 A0 ES 514421A0 ES 514421 A ES514421 A ES 514421A ES 514421 A ES514421 A ES 514421A ES 514421 A0 ES514421 A0 ES 514421A0
Authority
ES
Spain
Prior art keywords
water
particulate
procedure
production
solid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES514421A
Other languages
Spanish (es)
Other versions
ES8306169A1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson and Johnson
Original Assignee
Johnson and Johnson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/248,387 external-priority patent/US4394930A/en
Priority claimed from US06/274,232 external-priority patent/US4410571A/en
Application filed by Johnson and Johnson filed Critical Johnson and Johnson
Publication of ES8306169A1 publication Critical patent/ES8306169A1/en
Publication of ES514421A0 publication Critical patent/ES514421A0/en
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/425—Porous materials, e.g. foams or sponges
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F2013/15008—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use
    • A61F2013/15048—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use for protection against contamination, or protection in using body disinfecting wipes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
    • A61F2013/51409—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530489—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials being randomly mixed in with other material
    • A61F2013/530496—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials being randomly mixed in with other material being fixed to fibres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530802—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterized by the foam or sponge other than superabsorbent

Abstract

Particulate absorbents of a water-insoluble water-swellable polymer having a gel capacity of at least 10 are immobilized with a composition comprising the absorbent in a liquid polyhydroxy organic compound. The composition may be employed by applying to an appropriate surface and subjecting the liquid film to solidifying conditions. The solidified film product has high absorptive capacity and is free of undesirable movement when positioned in absorbent articles. A foam product having both absorptive and cushioning properties is prepared from a solid, particulate, water-insoluble, water-swellable polvmer having a gel capacity of at least 10, a solid, particulate blowing agent, and a liquid polyhydroxy organic compound. Foamable compositions and articles employing the foam are also described.
ES514421A 1980-08-25 1982-07-27 A PROCEDURE FOR THE PRODUCTION OF AN ABSORBENT FOAM POLYMERIC PRODUCT. Granted ES514421A0 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US18128980A 1980-08-25 1980-08-25
US06/248,387 US4394930A (en) 1981-03-27 1981-03-27 Absorbent foam products
US06/274,232 US4410571A (en) 1980-08-25 1981-06-22 Absorbent products, process and compositions for immobilization of particulate absorbents

Publications (2)

Publication Number Publication Date
ES8306169A1 ES8306169A1 (en) 1983-05-01
ES514421A0 true ES514421A0 (en) 1983-05-01

Family

ID=27391392

Family Applications (2)

Application Number Title Priority Date Filing Date
ES504928A Granted ES504928A0 (en) 1980-08-25 1981-08-24 A PROCEDURE FOR THE PREPARATION OF AN IMMOBILIZING-ABSORBING POLYMERIC COMPOSITION.
ES514421A Granted ES514421A0 (en) 1980-08-25 1982-07-27 A PROCEDURE FOR THE PRODUCTION OF AN ABSORBENT FOAM POLYMERIC PRODUCT.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES504928A Granted ES504928A0 (en) 1980-08-25 1981-08-24 A PROCEDURE FOR THE PREPARATION OF AN IMMOBILIZING-ABSORBING POLYMERIC COMPOSITION.

Country Status (21)

Country Link
EP (1) EP0049944B1 (en)
AT (1) ATE10257T1 (en)
AU (1) AU548161B2 (en)
BR (1) BR8105397A (en)
CA (1) CA1183513A (en)
DE (1) DE3167209D1 (en)
DK (1) DK374881A (en)
ES (2) ES504928A0 (en)
FI (1) FI812601L (en)
GB (2) GB2083487B (en)
GR (1) GR75732B (en)
HK (2) HK57985A (en)
IE (1) IE52167B1 (en)
KE (2) KE3541A (en)
MY (2) MY8600142A (en)
NO (1) NO152531C (en)
NZ (1) NZ198139A (en)
OA (1) OA06890A (en)
PH (2) PH18283A (en)
PT (1) PT73562B (en)
SG (2) SG36685G (en)

Families Citing this family (48)

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JPS58180233A (en) * 1982-04-19 1983-10-21 Nippon Shokubai Kagaku Kogyo Co Ltd Absorbing agent
US4413995A (en) * 1982-05-21 1983-11-08 Personal Products Company Absorbent panel suitable for use in absorbent products
CA1211266A (en) * 1982-11-12 1986-09-16 Alfred E. Lauchenauer Shaped semi-solid articles
US4551490A (en) * 1983-06-27 1985-11-05 E. R. Squibb & Sons, Inc. Adhesive composition resistant to biological fluids
GB2156370B (en) * 1984-03-27 1987-12-02 Personal Products Co Dispersed absorbent products and method of use
US4687573A (en) * 1984-08-13 1987-08-18 Pall Corporation Sorbing apparatus
FR2585284B1 (en) * 1985-07-23 1987-11-13 Beghin Say Sa PROCESS FOR FIXING LIQUID RETAINING POLYMERS IN AN OPEN POROUS STRUCTURE
FR2590501B1 (en) * 1985-11-22 1994-01-14 Beghin Say Sa LIQUID ABSORBING COMPOSITION
JPH0780970B2 (en) * 1986-08-29 1995-08-30 三菱化学株式会社 Method for manufacturing water-absorbent composite material
US4830641A (en) * 1987-04-13 1989-05-16 Pall Corporation Sorbing apparatus
GB8710328D0 (en) * 1987-04-30 1987-06-03 Courtaulds Plc Absorbent films
GB8717949D0 (en) * 1987-07-29 1987-09-03 Yarsley Technical Centre Ltd Water absorbent structures
US4826880B1 (en) * 1987-09-21 2000-04-25 Johnson & Johnson Inc Immobilizing particulate absorbents by conversion to hydrates
US5064653A (en) * 1988-03-29 1991-11-12 Ferris Mfg. Co. Hydrophilic foam compositions
US4950692A (en) * 1988-12-19 1990-08-21 Nalco Chemical Company Method for reconstituting superabsorbent polymer fines
US5641503A (en) * 1989-04-27 1997-06-24 Mcneil-Ppc, Inc. Additives to tampons
WO1991000316A1 (en) * 1989-06-28 1991-01-10 Commonwealth Scientific And Industrial Research Organisation Humidity buffer formulation
BR8904238A (en) * 1989-08-23 1991-02-26 Johnson & Johnson Sa SUPERABSORVENT MATERIAL, ABSORBENT STRUCTURE, ABSORBENT ARTICLE AND PROCESS FOR PREPARING THE SAID SUPERABSROVENT MATERIAL
US4970267A (en) * 1990-03-08 1990-11-13 Nalco Chemical Company Reconstitution of superabsorbent polymer fines using persulfate salts
US5384179A (en) * 1990-04-02 1995-01-24 The Procter & Gamble Company Particulate polymeric compositions having interparticle crosslinked aggregates of fine precursors
US5492962A (en) * 1990-04-02 1996-02-20 The Procter & Gamble Company Method for producing compositions containing interparticle crosslinked aggregates
US5300565A (en) * 1990-04-02 1994-04-05 The Procter & Gamble Company Particulate, absorbent, polymeric compositions containing interparticle crosslinked aggregates
NZ264247A (en) * 1990-10-30 1996-07-26 Mcneil Ppc Inc Absorbent product containing mono- or diesters of a polyhydric alcohol and a c8-18 fatty acid having at least one free hydroxyl group in sufficient amount to inhibit the production of enterotoxins a, b and c by staph. aureus
NZ250714A (en) * 1990-10-30 1996-05-28 Mcneil Ppc Inc Liquid composition comprising esters of higher fatty acids for use as a vaginal douche and to prevent toxic shock toxin production
GB9102660D0 (en) * 1991-02-07 1991-03-27 Ultra Lab Ltd Wound dressing materials
US5328935A (en) * 1993-03-26 1994-07-12 The Procter & Gamble Company Method of makig a superabsorbent polymer foam
US5338766A (en) * 1993-03-26 1994-08-16 The Procter & Gamble Company Superabsorbent polymer foam
US5536264A (en) * 1993-10-22 1996-07-16 The Procter & Gamble Company Absorbent composites comprising a porous macrostructure of absorbent gelling particles and a substrate
US5868724A (en) * 1993-10-22 1999-02-09 The Procter & Gamble Company Non-continuous absorbent cores comprising a porous macrostructure of absorbent gelling particles
US5713881A (en) * 1993-10-22 1998-02-03 Rezai; Ebrahim Non-continuous absorbent composites comprising a porous macrostructure of absorbent gelling particles and a substrate
DE4344224A1 (en) * 1993-12-23 1995-06-29 Stockhausen Chem Fab Gmbh Crosslinked synthetic polymers with porous structure, high absorption rate for water, aqueous solutions and body fluids, a process for their preparation and their use for the absorption and / or retention of water and / or aqueous liquids
US5372766A (en) * 1994-03-31 1994-12-13 The Procter & Gamble Company Flexible, porous, absorbent, polymeric macrostructures and methods of making the same
GB9415739D0 (en) * 1994-07-30 1994-09-21 Scimat Ltd Gel wound dressing
DE69635897T2 (en) * 1995-11-02 2006-10-19 Nippon Shokubai Co. Ltd. WATER ABSORBENT RESIN, ABSORBENT MATERIAL AND METHOD OF MANUFACTURING THE SAME
DE19540951A1 (en) * 1995-11-03 1997-05-07 Basf Ag Water-absorbent, foam-like, crosslinked polymers, processes for their preparation and their use
US6309661B1 (en) 1996-02-28 2001-10-30 Carla A. Haynes Solid polysaccharide materials for use as wound dressings
DE19607529A1 (en) 1996-02-28 1997-09-04 Basf Ag Absorber element of superabsorbent foams with anisotropic swelling behavior
GB2310668B (en) * 1996-02-28 2000-04-19 Johnson & Johnson Medical Solid polysaccharide materials for use as wound dressings
DE19809540A1 (en) 1998-03-05 1999-09-09 Basf Ag Water-absorbent, foam-like, crosslinked polymers, processes for their preparation and their use
US6261679B1 (en) 1998-05-22 2001-07-17 Kimberly-Clark Worldwide, Inc. Fibrous absorbent material and methods of making the same
MXPA04006692A (en) 2002-02-04 2005-04-25 Basf Ag A process for the reduction of the residual monomer content of water-absorbent foam.
US7297395B2 (en) 2002-07-30 2007-11-20 Kimberly-Clark Worldwide, Inc. Superabsorbent materials having low, controlled gel-bed friction angles and composites made from the same
US20040044321A1 (en) * 2002-08-27 2004-03-04 Kainth Arvinder Pal Singh Superabsorbent materials having controlled gel-bed friction angles and cohesion values and composites made from same
US9265855B2 (en) * 2011-05-18 2016-02-23 The Procter & Gamble Company Feminine hygiene absorbent article comprising a superabsorbent foam of high swell rate
US9744755B2 (en) 2013-04-01 2017-08-29 3M Innovative Properties Company Method of making absorbent foam composites
BR112018007748B1 (en) 2015-11-03 2022-07-26 Kimberly-Clark Worldwide, Inc. PAPER FABRIC PRODUCT, CLEANING PRODUCT, AND, PERSONAL CARE ABSORBING ARTICLE
KR102165232B1 (en) 2017-11-29 2020-10-13 킴벌리-클라크 월드와이드, 인크. Fiber sheet with improved properties
GB2590316B (en) 2018-07-25 2022-06-01 Kimberly Clark Co Process for making three-dimensional foam-laid nonwovens

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US3834606A (en) * 1972-04-06 1974-09-10 Torsten Jeppsson Ab Packaging trays and methods of making them
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US4134863A (en) * 1976-12-06 1979-01-16 The United States Of America As Represented By The Secretary Of Agriculture Highly absorbent graft copolymers of polyhydroxy polymers, acrylonitrile, and acrylic comonomers
FR2402474A1 (en) * 1977-09-13 1979-04-06 Beghin Say Sa MANUFACTURING PROCESS OF ABSORBENT STRUCTURES AND OBTAINED STRUCTURES
US4282121A (en) * 1979-10-09 1981-08-04 Henkel Corporation Resilient starch graft polymer polyhydric alcohol product

Also Published As

Publication number Publication date
AU548161B2 (en) 1985-11-28
PT73562A (en) 1981-09-01
KE3570A (en) 1985-11-08
ATE10257T1 (en) 1984-11-15
SG36685G (en) 1985-11-15
EP0049944A1 (en) 1982-04-21
PH19235A (en) 1986-02-14
BR8105397A (en) 1982-05-11
NO152531C (en) 1985-10-16
GR75732B (en) 1984-08-02
PT73562B (en) 1983-07-04
MY8600142A (en) 1986-12-31
MY8600288A (en) 1986-12-31
SG71785G (en) 1986-05-02
IE52167B1 (en) 1987-07-22
ES8307272A1 (en) 1983-06-16
KE3541A (en) 1985-07-12
HK57985A (en) 1985-08-09
OA06890A (en) 1983-04-30
GB2083487A (en) 1982-03-24
CA1183513A (en) 1985-03-05
DK374881A (en) 1982-02-26
GB8406408D0 (en) 1984-04-18
GB2083487B (en) 1985-03-06
NZ198139A (en) 1985-07-31
ES8306169A1 (en) 1983-05-01
NO812864L (en) 1982-02-26
ES504928A0 (en) 1983-06-16
HK92685A (en) 1985-11-29
EP0049944B1 (en) 1984-11-14
GB2136813B (en) 1985-06-26
PH18283A (en) 1985-05-20
DE3167209D1 (en) 1984-12-20
NO152531B (en) 1985-07-08
FI812601L (en) 1982-02-26
AU7445581A (en) 1982-03-04
IE811930L (en) 1982-02-25
GB2136813A (en) 1984-09-26

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960506